Blower



Patented Feb. 12, 1924..

srseniarnn scHEFrLEa, or ROSTOCK, MECKLENBURG, GERMANY.

BLOWER.

`Application lfiled August 30, 1921. Serial 110,497,053.

(GRANTED UNDER THE PROVISIONS 0F THE ACT OF MARGH 3, 1921, 4:1 STAT, L.,`1313.) y

To all whom it may concern.'

Be it known that I, SIEGFRIED SGHEFFLER, citizen of Germany, residing atRostock, llIecklenburg, Germany, have invented certain new and usefulImprovements in Blowers (for which I have iiled an application inGermany Oct. 11, 1919), of which the following is a specification.

The present invention refers to an apparatus for producing jets of airat any desired temperature; preferably heated to a certain degree, formedical particularly dental purposes, for instance for the treatment ofdiseases of the teeth, oral aifections, wounds in the oral cavities ordiseases of the throat or nose and open wounds of all description forthe purpose of creating a healing action by blowing air of a giventemperature against the affected parts, eventually at the same timeintroducing into the air medicines, drugs and the like.

The new apparatus consists mainly of a fixed or iloating casing throughwhich an air pipe projects, combined with a regulatavble heating deviceand means for indicating the temperature, and may also be combined withmeans for introducing medicine into the air passing through the tube,which means preferably are arranged on the feeding end of the apparatus.

The diiferent constructive elements are known per se, but are new in theparticular combination used for the purpose stated above. The apparatuscan also be employed for other purposes than those stated, for instancefor making cavities of a tooth dry before filling them, or when bridgesor plates and the like are to be attached. In constructing the apparatusanother yobject has been taken into account, and that is to enable thephysician or dentist to operate without any' assistants, even in suchcases where other means, generally found in dentist shops, are not athis disposal. y

In the drawing Fig. 1 is a longitudinal section of the apparatus shownindependently of any supports.

Fig. 2 is the end view of the apparatus shown in Fig. 1.

Fig. Sv'is an elevation of the apparatus supported onl the usualdentists floating table.

Figs. 4 and 5 show modifications of a spout used on the apparatus, and iFig. 6 is a longitudinal section ofk a modification of the apparatusshown in Fig. 1. Fig. 7 is an elevation partly in sectionof a largerplant, in which the apparatus is usedfcombined with means for producingsteam.

Fig. 8 is a longitudinal section of a spoutl used in the apparatus showninFig. 7., Fig. 9 is an elevation, and

Fig. 10 a plan of a modification of the ape Figs. 1 and 2 consists of acasing a, preferably of cylindrical ory oval cross section, throughwhich an air feed pipe b projects. `Within the casing a a heating devicec is arrangedbelow the pipe b. In the construction shown the heatingdevicel consists of a gas pipe c, running throughout the length of thecasing a, and having a number of gas jets d to heat the pipe b frombelow. By the cock e in the pipe c the gas nozzle can be regulated atwill. Also the air feed pipe is provided with a cock or valve f forthrottling the air passing through it. In frontof the casing a, the pipeb is provided with a thermometer 0, bythe aid of which the temperatureof the air driven through the pipe b can be read oif. -Thus not only thedesired amount of air passing the pipe but also its temperature can beregulated at will according to the object aimed at or acyThe apparatusas described 'above cany be` supported or attached in any suitablemanner, either fixed or floating to enable the apparatus to be held inany desired position as requirements may suggest.- In the form ed to ayoke z rotatably supported on an arm la, which may be rotatably,attached to a ,support 701 by a clamping screw 702.

1f-n the modification shown in Fig. 3 the `shown in Figs. 1 and 2 thecasing a is pivotapparatus is attached by articulated arms to a floatingtable m usually made use of by dentists. If desired the apparatus may besuspended from the ceiling, 'the suspending cord passing for instanceover a roller 7A (Fig. l1) as is usual in suspending lamps to enable theapparatus to be held in any desired floating position. It is ofimportance that the apparatus can be adjusted by hand into the desiredposition and then left -to itself, Without necessitatingthe physiciansholding the apparatus, so that his hands are perfectly free whencarrying out any desired operation in treating the affected parts of thepatient. According to need the spout shown in Fig. l can be replaced byany other construction, for in stance such as shown in Figs. 4; and 5.In Fig. `5 the spout is supposed to be flexible.

The thermometer gcmay either be fixed as shown in Fig. l or removable asshown in Fig. 6. By the aid of this thermometer at any time the degreeof heat of the air, passing from the apparatus, can be determined. Byadjusting the cock e, lthe, temperature may be raised or lowered, and byadjusting the cock f the amount or speed of air can be regulated.Preferably in the neighbourhood of ythe thermometer, for instance behindthe thermometer on thehot air tube Y), a device can be attached forintroducing an antiseptic or other medicine into the stream of air. Inthe modification shown in Fig. 6 this devicer consists of a funnel vlikevessel or hopper q which, by a conical part, opens out into the tube b.That part of the tube b below the hopper g may be filled up With asponge or a sucking-Wick or other 'absorbent t, so as to distribute themedicine flowing out of the hopper and to enable the medicine to beeasily vaporized by the hotair passing through the absorbent. Ifdesired, a dropping vdevicer r may be provided for allowing the medicineto pass out from the Vhopper by drops. To hold the absorbent at itsplace on one or both sidesa Wire-netting 8 may be fitted into the tube79, thus improving` the distribution of the absorbent throughout thecross section of the tube i The front Wire-netting` prevents the liquidfrom being drawn along With the air unevaporated. By this means not onlyWarm air but also amedicine or antiseptic drug may be introduced intothe air to treat Wounds or other affected parts ofthe body.

The heat-ing deviceformed by the tube may be removable, to enable thisdevice to f be interchanged by some heating means. for

`instance an electric "heating device c1 as shown in Fig. l1.

If a gas or 'spirit `burner .is used, it is advisable' to protect orstrengthen the tube .b by a mantle n', partly` surrounding" the tube onits lower side.

The air used for the burner may enter the casing a by the lower openings0, and the products of combustion may escape by the upper openings p. Byan opening r (Fig 2) of the cover al of the casing (t the gas may beignited.

If desired the apparatus described above may be combined with means toenable it to give off steam. In this case the apparatus is connected orcombined with a small boiler of any desired description. The apparatusshown in Fig. 7 is Well adapted for this purpose. The tube F) in thisapparatus is not only connected With an air blower u by the pipes u1 andu2, but also With a boiler l o by the' pipe a3. The boiler o may beheated by electricity, for instance by resistance Wires '0, Whichaccording to need may be shunted olf by a switch (o2. The steam createdin the boiler Will pass through the pipe ua into the pipe b and mingleWith the air introduced into the pipe b by the pipe a2. If it is foundthat this mixture of air and steam is suiiiciently hot, the cock e forthe heating device c Within the casing aY may be closed. But when it isdesired to superheat the steam or the mixture of steam and air, theheating device c may be ignited. By the valves or cocks a4 'M5 themixture of air and steam may be regulated in any desired manner.

The boiler o described above might also be used for introducing a sprayof cold Water into the air driven through the vtube b by the blower u.In this case the tube al may be connected with the boiler o by an othertube u passing into the boiler and reaching into the Water. If desiredthe lovver part M7 of this tube may be perforated, and in order toincrease the length of this part of the tube it may be shaped helicallyas shown in Fig. 7. By these means, when the electric heater o1 isshunted off, a spray of Water will be created When the cocks u8 and M5are opened, thus mixing the air driven by the blower u` through theapparatus with a spray of cold air, which mixture may be heated at anydesired degree by the heater c.

The spout 71.1 may be so constructed as to allovv atmospheric air to bedrawn along with the jet produced by the apparatus. For this purpose thetube Z) is provided with a nozzle b1, and at the rear end of the spouth1 'there is a hit and miss valve consisting of a ring h2 provided withopenings it* which correspond to openings 71.3 at the rear end of thespout 71.1 (Fig.r 8). Thus by rotating the ring 71.2, the openings ifmay be closed or opened' more or less to regi'ilate the amount ofatmospheric air mixing with the jet produced by the apparatus.

In the modification shown in Fig. 8, the medicine hopper (j is connectedWith a thin helical pipe g1 through Which the medicine indicate similaror drugs are heated and evaporized by the heat of the jet passingthrough the nozzle 1.

The boiler t* may also be provided with a thermometer g1 for enabling aregulation of the heat ot steam produced in the boiler.

ln Figs. 9 and l0 another modification is shown in which the boiler' oand the apparatus a, I) is arranged Within a common casing a. rPhe saineletters of reterence as used in Fig. 7 are also used in Figs. 9 and l0to indicate similar parts. The modification (Figs. 9 and l0) is portableand intended particularly for dentists or physicians Jfor throat andnose, while the apparatus shown in Fig. 7 is well adapted tor largehospitals. ln both cases hot air either mixed with medicated vapour orsteam or cold spray may be applied according to need.

In the modification shown in Figs. 9 and 10 a special tube a9 isemployed to connecty the boiler directly with the pipe after leaving thecasing a so as to enable steam to enter the spout 7L directly ifdesired.

The modification shown in Fig. 11 is particularly well adapted fordentists or other physicians, particularly for specialists Jfor the noseand mouth. In this modification a boiler o2 is connected with the casinga constituting the apparatus shown in Fig. 1 in such manner that thecomplete apparatus can be suspended from the ceiling for instance over aroller Similar letters of reference parts such as shown in Figs. 7, 9and lO.

It this floating apparatus is used for dentists, the pipeI o can beconnected with any spout L or h1 shown in Figs. l, li, 5 and 8, or itcan be connected with a exible tube h4 provided at its end with aninhaling mask z" or with a ilexible tube 7L provided at its end with a.nose piece 71,7. rl`hus this apparatus can be used for any desiredpurposes.

I claim:

l. An appara-tus for producing jets of air and steam ltor medicalpurposes comprising a casing, an air pipe passing through the casing, aheating device within the casing below the air pipe, a thermometerprojecting into the air pipe, a blower connected with.r

and adapted to drive air through the air pipe, a steam boiler, pipesconnecting both blower and boiler` to the air pipe, valves in theconnecting pipes to regulate the flow of air and steam, a third pipeconnecting the blower directly with the boiler and projecting into thewater of the boiler. j

2. An apparatus for producing jets ci' air or steam tor medical purposescomprising a casing, an air pipe passing through the casing, a heatingdevice within the casing below the air pipe, a thermometer projectinginto the air pipe, a blower connected with and adapted to drive airthrough the air pipe, a steam boiler, pipes connecting both blower andboiler to the air pipe, valves in the connecting pipes to regulate thetlow of air and steam, a third pipe connecting the blower directly withthe boiler and hat ing a perforated portion projecting into the water ofthe boiler,

3. An apparatus for producing jets oi'air or steam for medical purposes,comprising a casing, an air pipe passing through the casing, a heatingdevice within the casing belowthe air pipe, a thermometer projectinginto the air pipe, means for introducing va medicine into the air tubeconsisting of a hopper opening into the air pipe from above, a thin pipeforming a prolongation of the hopper and running along within the airpipe adapted to vaporize the medicine coming from the hopper by theheated air or steam passing through the air pipe, means for regulatingthe stream ot' air passing through the air pipe, and means forregulating the heating device.

4. An apparatus for producing jets of air or steam for medical purposes,comprising a casing, an air pipe passing through the casing, a heatingdevice within the casing below the air pipe, a thermometer projectinginto the air pipe, means for `introducing a medicine into the air tubeoonsisting of a hopper opening into the airl pipe from above, a thinpipe forming a prolongation of the hopper, and bent to form a helice,and running along within the air pipe adapted to vaporize the medicinecoming from the hopper by the heated air or steam passing through theair pipe, means tor regulating the stream of air passing through the airpipe, and means Jfor regulating the heating device.

SIEGFRIED SCHEFFLEB.

Witnesses CARL YRGER, HANS Fnons.

